To find all the divisors of the number 4,376,790:
- 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 4,376,790:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,376,790 = 2 × 32 × 5 × 11 × 4,421
4,376,790 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) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,376,790
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- 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 =
3
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2 × 11 =
22
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 3
2 × 5 =
45
composite factor = 5 × 11 =
55
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
2 × 11 =
99
composite factor = 2 × 5 × 11 =
110
composite factor = 3 × 5 × 11 =
165
composite factor = 2 × 3
2 × 11 =
198
composite factor = 2 × 3 × 5 × 11 =
330
composite factor = 3
2 × 5 × 11 =
495
composite factor = 2 × 3
2 × 5 × 11 =
990
This list continues below...
... This list continues from above
prime factor =
4,421
composite factor = 2 × 4,421 =
8,842
composite factor = 3 × 4,421 =
13,263
composite factor = 5 × 4,421 =
22,105
composite factor = 2 × 3 × 4,421 =
26,526
composite factor = 3
2 × 4,421 =
39,789
composite factor = 2 × 5 × 4,421 =
44,210
composite factor = 11 × 4,421 =
48,631
composite factor = 3 × 5 × 4,421 =
66,315
composite factor = 2 × 3
2 × 4,421 =
79,578
composite factor = 2 × 11 × 4,421 =
97,262
composite factor = 2 × 3 × 5 × 4,421 =
132,630
composite factor = 3 × 11 × 4,421 =
145,893
composite factor = 3
2 × 5 × 4,421 =
198,945
composite factor = 5 × 11 × 4,421 =
243,155
composite factor = 2 × 3 × 11 × 4,421 =
291,786
composite factor = 2 × 3
2 × 5 × 4,421 =
397,890
composite factor = 3
2 × 11 × 4,421 =
437,679
composite factor = 2 × 5 × 11 × 4,421 =
486,310
composite factor = 3 × 5 × 11 × 4,421 =
729,465
composite factor = 2 × 3
2 × 11 × 4,421 =
875,358
composite factor = 2 × 3 × 5 × 11 × 4,421 =
1,458,930
composite factor = 3
2 × 5 × 11 × 4,421 =
2,188,395
composite factor = 2 × 3
2 × 5 × 11 × 4,421 =
4,376,790
48 factors (divisors)
What times what is 4,376,790?
What number multiplied by what number equals 4,376,790?
All the combinations of any two natural numbers whose product equals 4,376,790.
1 × 4,376,790 = 4,376,790
2 × 2,188,395 = 4,376,790
3 × 1,458,930 = 4,376,790
5 × 875,358 = 4,376,790
6 × 729,465 = 4,376,790
9 × 486,310 = 4,376,790
10 × 437,679 = 4,376,790
11 × 397,890 = 4,376,790
15 × 291,786 = 4,376,790
18 × 243,155 = 4,376,790
22 × 198,945 = 4,376,790
30 × 145,893 = 4,376,790
33 × 132,630 = 4,376,790
45 × 97,262 = 4,376,790
55 × 79,578 = 4,376,790
66 × 66,315 = 4,376,790
90 × 48,631 = 4,376,790
99 × 44,210 = 4,376,790
110 × 39,789 = 4,376,790
165 × 26,526 = 4,376,790
198 × 22,105 = 4,376,790
330 × 13,263 = 4,376,790
495 × 8,842 = 4,376,790
990 × 4,421 = 4,376,790
24 unique multiplications The final answer:
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