Q: What are the prime factors of the number 40,154,112?

 A: 2, 3, 4357

Why are those the prime factors of the number 40,154,112?

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 40,154,112

40,154,112
Factor Arrows
220,077,056
Factor Arrows
210,038,528
Factor Arrows
25,019,264
Factor Arrows
22,509,632
Factor Arrows
21,254,816
Factor Arrows
2627,408
Factor Arrows
2313,704
Factor Arrows
2156,852
Factor Arrows
278,426
Factor Arrows
239,213
Factor Arrows
313,071
Factor Arrows
34,357

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, 3, 4357

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 2 x 2 x 3 x 3 x 4,357 = 40,154,112

This can also be written as 210 x 32 x 4,3571 = 40,154,112

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


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