CBSE Class 10 Answered
explain why 7*11*13+13 is a composite number
Asked by prgayathri | 21 Apr, 2008, 07:29: PM
Expert Answer
Fundamental them. of arithmetic every composite number can be expressed as a product of primes.
7x11x13 + 13 = 13 x ( 1 + 7 x11)
= 13 ( 7x11 + 1 )
= 13 x 78 which is a composite number
Answered by | 08 May, 2008, 01:04: PM
CBSE 10 - Maths
Asked by KONDA VENKATA KHEERTHANA | 04 May, 2018, 10:29: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Show that every positive even integer is of the form2q and every positive odd integer is of the form
Asked by suryap2 | 26 May, 2010, 04:16: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by surazz | 23 May, 2010, 12:31: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by sahil.95rana | 23 May, 2010, 06:53: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by surazz | 09 May, 2010, 10:06: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by sumandeesinghrana | 30 Apr, 2010, 08:15: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by ayushikas | 30 Apr, 2010, 08:42: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by saraza | 27 Apr, 2010, 08:55: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by kanz_daruler1 | 26 Apr, 2010, 09:52: PM
ANSWERED BY EXPERT
