Factors of 1155

What are the Factors of 1155?

1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155 as Factors

or

11×105, 15×77, 1×1155, 21×55, 33×35, 3×385, 5×231, 7×165 as Factor Pairs

Formula How to
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Factors

How to find Factors of 1155? The factors of a number are the positive integers that divide evenly into that number. In other words, they're the numbers that can be multiplied together to give the original number.

The number of factors a positive integer has is related to its prime factorization. For example, a number that is the product of two distinct primes has exactly three factors: 1, the number itself, and one of the primes. On the other hand, a number that is a perfect square has an odd number of factors, because it has duplicates of its prime factors.

To find the factors of a number, you need to break that number down to its smallest prime number.

The quickest way to find the factors of a number is to divide it by the smallest prime number (bigger than 1) that goes into it evenly with no remainder. Continue this process with each number you get, until you reach 1.

For calculation, here's how to calculate Factors of 1155 using the formula above, step by step trees are given below

Number Factor Pairs
1150 10×115, 1×1150, 23×50, 25×46, 2×575, 5×230
1151 1×1151
1152 12×96, 16×72, 18×64, 1×1152, 24×48, 2×576, 32×36, 3×384, 4×288, 6×192, 8×144, 9×128
1153 1×1153
1154 1×1154, 2×577
1155 11×105, 15×77, 1×1155, 21×55, 33×35, 3×385, 5×231, 7×165
1156 17×68, 1×1156, 2×578, 34×34, 4×289
1157 13×89, 1×1157
1158 1×1158, 2×579, 3×386, 6×193
1159 19×61, 1×1159
1160 10×116, 1×1160, 20×58, 29×40, 2×580, 4×290, 5×232, 8×145

Factors of 1155 are 1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385 and 1155.

Factor Pairs of 1155 are 11×105, 15×77, 1×1155, 21×55, 33×35, 3×385, 5×231 and 7×165.

No! 1155 is not a prime number.

Yes! 1155 is a composite number.
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