Q: What are the prime factors of the number 151,053,056?

 A: 2, 7, 11, 79, 97

Why are those the prime factors of the number 151,053,056?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 151,053,056

151,053,056
Factor Arrows
275,526,528
Factor Arrows
237,763,264
Factor Arrows
218,881,632
Factor Arrows
29,440,816
Factor Arrows
24,720,408
Factor Arrows
22,360,204
Factor Arrows
21,180,102
Factor Arrows
2590,051
Factor Arrows
784,293
Factor Arrows
117,663
Factor Arrows
7997

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 11, 79, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 11 x 79 x 97 = 151,053,056

This can also be written as 28 x 71 x 111 x 791 x 971 = 151,053,056

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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