Find how many odd factors are there in the number 1240.1. 22. 43. 54.

1.	Find how many odd factors are there in the number 1240.1. 22. 43. 54. 16
Answer» Correct Answer - Option 2 : 4 Given: number 1240 Formula used: Odd factors of pa × qb = (a +1)(b + 1), Where p and q should be odd prime numbers Calculation: Factor of 1240 = 23 × 51 × (31)1 ⇒ Odd number are 51 × (31)1 ⇒ Odd factors of pa × qb ⇒ (a +1)(b + 1) ⇒ (1 + 1)(1 + 1) = 4 ∴ 1240 has 4 odd factors

Find how many odd factors are there in the number 1240.1. 22. 43. 54. 16

Answer» Correct Answer - Option 2 : 4

Given:

number 1240

Formula used:

Odd factors of pa × qb = (a +1)(b + 1),

Where p and q should be odd prime numbers

Calculation:

Factor of 1240 = 23 × 51 × (31)1

⇒ Odd number are 51 × (31)1

⇒ Odd factors of pa × qb

⇒ (a +1)(b + 1)

⇒ (1 + 1)(1 + 1) = 4

∴ 1240 has 4 odd factors

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Find how many odd factors are there in the number 1240.1. 22. 43. 54. 16

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