To find all the divisors of the number 1,000,000,742:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 1,000,000,742:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,000,000,742 = 2 × 13 × 19 × 41 × 97 × 509
1,000,000,742 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,000,000,742
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
13
prime factor =
19
composite factor = 2 × 13 =
26
composite factor = 2 × 19 =
38
prime factor =
41
composite factor = 2 × 41 =
82
prime factor =
97
composite factor = 2 × 97 =
194
composite factor = 13 × 19 =
247
composite factor = 2 × 13 × 19 =
494
prime factor =
509
composite factor = 13 × 41 =
533
composite factor = 19 × 41 =
779
composite factor = 2 × 509 =
1,018
composite factor = 2 × 13 × 41 =
1,066
composite factor = 13 × 97 =
1,261
composite factor = 2 × 19 × 41 =
1,558
composite factor = 19 × 97 =
1,843
composite factor = 2 × 13 × 97 =
2,522
composite factor = 2 × 19 × 97 =
3,686
composite factor = 41 × 97 =
3,977
composite factor = 13 × 509 =
6,617
composite factor = 2 × 41 × 97 =
7,954
composite factor = 19 × 509 =
9,671
composite factor = 13 × 19 × 41 =
10,127
composite factor = 2 × 13 × 509 =
13,234
composite factor = 2 × 19 × 509 =
19,342
composite factor = 2 × 13 × 19 × 41 =
20,254
composite factor = 41 × 509 =
20,869
composite factor = 13 × 19 × 97 =
23,959
This list continues below...
... This list continues from above
composite factor = 2 × 41 × 509 =
41,738
composite factor = 2 × 13 × 19 × 97 =
47,918
composite factor = 97 × 509 =
49,373
composite factor = 13 × 41 × 97 =
51,701
composite factor = 19 × 41 × 97 =
75,563
composite factor = 2 × 97 × 509 =
98,746
composite factor = 2 × 13 × 41 × 97 =
103,402
composite factor = 13 × 19 × 509 =
125,723
composite factor = 2 × 19 × 41 × 97 =
151,126
composite factor = 2 × 13 × 19 × 509 =
251,446
composite factor = 13 × 41 × 509 =
271,297
composite factor = 19 × 41 × 509 =
396,511
composite factor = 2 × 13 × 41 × 509 =
542,594
composite factor = 13 × 97 × 509 =
641,849
composite factor = 2 × 19 × 41 × 509 =
793,022
composite factor = 19 × 97 × 509 =
938,087
composite factor = 13 × 19 × 41 × 97 =
982,319
composite factor = 2 × 13 × 97 × 509 =
1,283,698
composite factor = 2 × 19 × 97 × 509 =
1,876,174
composite factor = 2 × 13 × 19 × 41 × 97 =
1,964,638
composite factor = 41 × 97 × 509 =
2,024,293
composite factor = 2 × 41 × 97 × 509 =
4,048,586
composite factor = 13 × 19 × 41 × 509 =
5,154,643
composite factor = 2 × 13 × 19 × 41 × 509 =
10,309,286
composite factor = 13 × 19 × 97 × 509 =
12,195,131
composite factor = 2 × 13 × 19 × 97 × 509 =
24,390,262
composite factor = 13 × 41 × 97 × 509 =
26,315,809
composite factor = 19 × 41 × 97 × 509 =
38,461,567
composite factor = 2 × 13 × 41 × 97 × 509 =
52,631,618
composite factor = 2 × 19 × 41 × 97 × 509 =
76,923,134
composite factor = 13 × 19 × 41 × 97 × 509 =
500,000,371
composite factor = 2 × 13 × 19 × 41 × 97 × 509 =
1,000,000,742
64 factors (divisors)
What times what is 1,000,000,742?
What number multiplied by what number equals 1,000,000,742?
All the combinations of any two natural numbers whose product equals 1,000,000,742.
1 × 1,000,000,742 = 1,000,000,742
2 × 500,000,371 = 1,000,000,742
13 × 76,923,134 = 1,000,000,742
19 × 52,631,618 = 1,000,000,742
26 × 38,461,567 = 1,000,000,742
38 × 26,315,809 = 1,000,000,742
41 × 24,390,262 = 1,000,000,742
82 × 12,195,131 = 1,000,000,742
97 × 10,309,286 = 1,000,000,742
194 × 5,154,643 = 1,000,000,742
247 × 4,048,586 = 1,000,000,742
494 × 2,024,293 = 1,000,000,742
509 × 1,964,638 = 1,000,000,742
533 × 1,876,174 = 1,000,000,742
779 × 1,283,698 = 1,000,000,742
1,018 × 982,319 = 1,000,000,742
1,066 × 938,087 = 1,000,000,742
1,261 × 793,022 = 1,000,000,742
1,558 × 641,849 = 1,000,000,742
1,843 × 542,594 = 1,000,000,742
2,522 × 396,511 = 1,000,000,742
3,686 × 271,297 = 1,000,000,742
3,977 × 251,446 = 1,000,000,742
6,617 × 151,126 = 1,000,000,742
7,954 × 125,723 = 1,000,000,742
9,671 × 103,402 = 1,000,000,742
10,127 × 98,746 = 1,000,000,742
13,234 × 75,563 = 1,000,000,742
19,342 × 51,701 = 1,000,000,742
20,254 × 49,373 = 1,000,000,742
20,869 × 47,918 = 1,000,000,742
23,959 × 41,738 = 1,000,000,742
32 unique multiplications The final answer:
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