To find all the divisors of the number 710,820:
- 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 710,820:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
710,820 = 22 × 32 × 5 × 11 × 359
710,820 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 = (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 710,820
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 2
2 × 3
2 =
36
composite factor = 2
2 × 11 =
44
composite factor = 3
2 × 5 =
45
composite factor = 5 × 11 =
55
composite factor = 2
2 × 3 × 5 =
60
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 = 2
2 × 3 × 11 =
132
composite factor = 3 × 5 × 11 =
165
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2 × 3
2 × 11 =
198
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2 × 3 × 5 × 11 =
330
prime factor =
359
composite factor = 2
2 × 3
2 × 11 =
396
composite factor = 3
2 × 5 × 11 =
495
composite factor = 2
2 × 3 × 5 × 11 =
660
composite factor = 2 × 359 =
718
This list continues below...
... This list continues from above
composite factor = 2 × 3
2 × 5 × 11 =
990
composite factor = 3 × 359 =
1,077
composite factor = 2
2 × 359 =
1,436
composite factor = 5 × 359 =
1,795
composite factor = 2
2 × 3
2 × 5 × 11 =
1,980
composite factor = 2 × 3 × 359 =
2,154
composite factor = 3
2 × 359 =
3,231
composite factor = 2 × 5 × 359 =
3,590
composite factor = 11 × 359 =
3,949
composite factor = 2
2 × 3 × 359 =
4,308
composite factor = 3 × 5 × 359 =
5,385
composite factor = 2 × 3
2 × 359 =
6,462
composite factor = 2
2 × 5 × 359 =
7,180
composite factor = 2 × 11 × 359 =
7,898
composite factor = 2 × 3 × 5 × 359 =
10,770
composite factor = 3 × 11 × 359 =
11,847
composite factor = 2
2 × 3
2 × 359 =
12,924
composite factor = 2
2 × 11 × 359 =
15,796
composite factor = 3
2 × 5 × 359 =
16,155
composite factor = 5 × 11 × 359 =
19,745
composite factor = 2
2 × 3 × 5 × 359 =
21,540
composite factor = 2 × 3 × 11 × 359 =
23,694
composite factor = 2 × 3
2 × 5 × 359 =
32,310
composite factor = 3
2 × 11 × 359 =
35,541
composite factor = 2 × 5 × 11 × 359 =
39,490
composite factor = 2
2 × 3 × 11 × 359 =
47,388
composite factor = 3 × 5 × 11 × 359 =
59,235
composite factor = 2
2 × 3
2 × 5 × 359 =
64,620
composite factor = 2 × 3
2 × 11 × 359 =
71,082
composite factor = 2
2 × 5 × 11 × 359 =
78,980
composite factor = 2 × 3 × 5 × 11 × 359 =
118,470
composite factor = 2
2 × 3
2 × 11 × 359 =
142,164
composite factor = 3
2 × 5 × 11 × 359 =
177,705
composite factor = 2
2 × 3 × 5 × 11 × 359 =
236,940
composite factor = 2 × 3
2 × 5 × 11 × 359 =
355,410
composite factor = 2
2 × 3
2 × 5 × 11 × 359 =
710,820
72 factors (divisors)
What times what is 710,820?
What number multiplied by what number equals 710,820?
All the combinations of any two natural numbers whose product equals 710,820.
1 × 710,820 = 710,820
2 × 355,410 = 710,820
3 × 236,940 = 710,820
4 × 177,705 = 710,820
5 × 142,164 = 710,820
6 × 118,470 = 710,820
9 × 78,980 = 710,820
10 × 71,082 = 710,820
11 × 64,620 = 710,820
12 × 59,235 = 710,820
15 × 47,388 = 710,820
18 × 39,490 = 710,820
20 × 35,541 = 710,820
22 × 32,310 = 710,820
30 × 23,694 = 710,820
33 × 21,540 = 710,820
36 × 19,745 = 710,820
44 × 16,155 = 710,820
45 × 15,796 = 710,820
55 × 12,924 = 710,820
60 × 11,847 = 710,820
66 × 10,770 = 710,820
90 × 7,898 = 710,820
99 × 7,180 = 710,820
110 × 6,462 = 710,820
132 × 5,385 = 710,820
165 × 4,308 = 710,820
180 × 3,949 = 710,820
198 × 3,590 = 710,820
220 × 3,231 = 710,820
330 × 2,154 = 710,820
359 × 1,980 = 710,820
396 × 1,795 = 710,820
495 × 1,436 = 710,820
660 × 1,077 = 710,820
718 × 990 = 710,820
36 unique multiplications The final answer:
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