Q: What are the prime factors of the number 77,030,152?

 A: 2, 37, 197, 1321

Why are those the prime factors of the number 77,030,152?

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 77,030,152

77,030,152
Factor Arrows
238,515,076
Factor Arrows
219,257,538
Factor Arrows
29,628,769
Factor Arrows
37260,237
Factor Arrows
1971,321

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, 37, 197, 1321

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 37 x 197 x 1,321 = 77,030,152

This can also be written as 23 x 371 x 1971 x 1,3211 = 77,030,152

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


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