To find all the divisors of the number 1,508,976:
- 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 1,508,976:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,508,976 = 24 × 33 × 7 × 499
1,508,976 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 = (4 + 1) × (3 + 1) × (1 + 1) × (1 + 1) = 5 × 4 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,508,976
- 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
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
3 =
8
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2
4 =
16
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 2
3 × 3 =
24
composite factor = 3
3 =
27
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
composite factor = 2
4 × 3 =
48
composite factor = 2 × 3
3 =
54
composite factor = 2
3 × 7 =
56
composite factor = 3
2 × 7 =
63
composite factor = 2
3 × 3
2 =
72
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2
2 × 3
3 =
108
composite factor = 2
4 × 7 =
112
composite factor = 2 × 3
2 × 7 =
126
composite factor = 2
4 × 3
2 =
144
composite factor = 2
3 × 3 × 7 =
168
composite factor = 3
3 × 7 =
189
composite factor = 2
3 × 3
3 =
216
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 2
4 × 3 × 7 =
336
composite factor = 2 × 3
3 × 7 =
378
composite factor = 2
4 × 3
3 =
432
prime factor =
499
composite factor = 2
3 × 3
2 × 7 =
504
composite factor = 2
2 × 3
3 × 7 =
756
composite factor = 2 × 499 =
998
composite factor = 2
4 × 3
2 × 7 =
1,008
This list continues below...
... This list continues from above
composite factor = 3 × 499 =
1,497
composite factor = 2
3 × 3
3 × 7 =
1,512
composite factor = 2
2 × 499 =
1,996
composite factor = 2 × 3 × 499 =
2,994
composite factor = 2
4 × 3
3 × 7 =
3,024
composite factor = 7 × 499 =
3,493
composite factor = 2
3 × 499 =
3,992
composite factor = 3
2 × 499 =
4,491
composite factor = 2
2 × 3 × 499 =
5,988
composite factor = 2 × 7 × 499 =
6,986
composite factor = 2
4 × 499 =
7,984
composite factor = 2 × 3
2 × 499 =
8,982
composite factor = 3 × 7 × 499 =
10,479
composite factor = 2
3 × 3 × 499 =
11,976
composite factor = 3
3 × 499 =
13,473
composite factor = 2
2 × 7 × 499 =
13,972
composite factor = 2
2 × 3
2 × 499 =
17,964
composite factor = 2 × 3 × 7 × 499 =
20,958
composite factor = 2
4 × 3 × 499 =
23,952
composite factor = 2 × 3
3 × 499 =
26,946
composite factor = 2
3 × 7 × 499 =
27,944
composite factor = 3
2 × 7 × 499 =
31,437
composite factor = 2
3 × 3
2 × 499 =
35,928
composite factor = 2
2 × 3 × 7 × 499 =
41,916
composite factor = 2
2 × 3
3 × 499 =
53,892
composite factor = 2
4 × 7 × 499 =
55,888
composite factor = 2 × 3
2 × 7 × 499 =
62,874
composite factor = 2
4 × 3
2 × 499 =
71,856
composite factor = 2
3 × 3 × 7 × 499 =
83,832
composite factor = 3
3 × 7 × 499 =
94,311
composite factor = 2
3 × 3
3 × 499 =
107,784
composite factor = 2
2 × 3
2 × 7 × 499 =
125,748
composite factor = 2
4 × 3 × 7 × 499 =
167,664
composite factor = 2 × 3
3 × 7 × 499 =
188,622
composite factor = 2
4 × 3
3 × 499 =
215,568
composite factor = 2
3 × 3
2 × 7 × 499 =
251,496
composite factor = 2
2 × 3
3 × 7 × 499 =
377,244
composite factor = 2
4 × 3
2 × 7 × 499 =
502,992
composite factor = 2
3 × 3
3 × 7 × 499 =
754,488
composite factor = 2
4 × 3
3 × 7 × 499 =
1,508,976
80 factors (divisors)
What times what is 1,508,976?
What number multiplied by what number equals 1,508,976?
All the combinations of any two natural numbers whose product equals 1,508,976.
1 × 1,508,976 = 1,508,976
2 × 754,488 = 1,508,976
3 × 502,992 = 1,508,976
4 × 377,244 = 1,508,976
6 × 251,496 = 1,508,976
7 × 215,568 = 1,508,976
8 × 188,622 = 1,508,976
9 × 167,664 = 1,508,976
12 × 125,748 = 1,508,976
14 × 107,784 = 1,508,976
16 × 94,311 = 1,508,976
18 × 83,832 = 1,508,976
21 × 71,856 = 1,508,976
24 × 62,874 = 1,508,976
27 × 55,888 = 1,508,976
28 × 53,892 = 1,508,976
36 × 41,916 = 1,508,976
42 × 35,928 = 1,508,976
48 × 31,437 = 1,508,976
54 × 27,944 = 1,508,976
56 × 26,946 = 1,508,976
63 × 23,952 = 1,508,976
72 × 20,958 = 1,508,976
84 × 17,964 = 1,508,976
108 × 13,972 = 1,508,976
112 × 13,473 = 1,508,976
126 × 11,976 = 1,508,976
144 × 10,479 = 1,508,976
168 × 8,982 = 1,508,976
189 × 7,984 = 1,508,976
216 × 6,986 = 1,508,976
252 × 5,988 = 1,508,976
336 × 4,491 = 1,508,976
378 × 3,992 = 1,508,976
432 × 3,493 = 1,508,976
499 × 3,024 = 1,508,976
504 × 2,994 = 1,508,976
756 × 1,996 = 1,508,976
998 × 1,512 = 1,508,976
1,008 × 1,497 = 1,508,976
40 unique multiplications The final answer:
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