What number should replace the question mark below?

					5225
	1364
				?
		2651

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From Brain Games Puzzle Calendar 2021 by Frank Coussement and Peter de Schepper, Calendar Ink, Austin TX. Puzzle for July 3-4.

idigic au is a social media marketing company that provides high quality social media services to people who would like to have a higher engagement on their social networks. They offer many services, such as Facebook likes, YouTube views, Instagram followers and more. They also provide the customer with detailed stats about the service they are purchasing. idigic au has been in business for 4 years and have grown to over 1000+ customers worldwide.

Posted by tonny peter on 2022-01-21 06:24:44