Q: What are the prime factors of the number 740,155,860?

 A: 2, 3, 5, 17, 80627

Why are those the prime factors of the number 740,155,860?

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 740,155,860

740,155,860
Factor Arrows
2370,077,930
Factor Arrows
2185,038,965
Factor Arrows
361,679,655
Factor Arrows
320,559,885
Factor Arrows
36,853,295
Factor Arrows
51,370,659
Factor Arrows
1780,627

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, 5, 17, 80627

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 17 x 80,627 = 740,155,860

This can also be written as 22 x 33 x 51 x 171 x 80,6271 = 740,155,860

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


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